Why such different file sizes?

I have made a couple videos using iMovie. Why is it that one movie is 14 GB and the other one is 40GB. They are both 30 minutes long and the shorter one actually has more transitions, the second one may have more shorter clips, is that the reason? Just trying to figure out how to free up some space on my Mac as I am starting to run out of space:(
THANK YOU!!!

Thank you for your help...the video that was 40GB had a lot more clips that were shortened..is there anyway to make the file smaller even though there were longer clips that were shortenend... I am also worried that I will not be able to burn it onto a dvd with a file size that large. I am sorry. I am terrible with computers!!:)

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Why the different file sizes?

Can anyone tell me why some songs are in the 20-30MB range, and most are only 3 or 4MB range? And more importantly, is there any way to shrink down the big ones? They make the CDs I burn very short indeed.

The file size of your imported songs will depend on your import settings in iTunes. An individual file size of 20-30mb sounds like you are importing in WAV or Apple Lossless. mp3 or AAC will have the same file size when using the same bitrate. For example, the average 4 minute song imported in AAC @ 128 kbps will have a file size of 3-4mb.

Hi - for any photo, info in mountain lion shows a different file size than Photoshop does. I've tested with CS3 and CS6 and get the same problem. Doesn't happen with CS3 and OSX10.4 or any previous versions of Photoshop and OSX. Anyone know why?

Hi - for any photo, info in mountain lion shows a different file size than Photoshop does. I've tested with both CS3 and CS6 on 10.8.2 and get the same problem. This doesn't happen with CS3 and OSX10.4 or any previous versions of Photoshop and OSX. Anyone know why?

this one is actually a really rare symptom of a flaky connection to the ipod on a Windows PC. there's more going on in terms of hardware on nanos and 5th gens than in the earlier models ... so if the connection is flaky to precisely the right/wrong degree, itunes will see the ipod, but misidentify it as an earlier version of ipod.
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QuickTimePro - Export vs Save - Different File sizes

Hi,
with the trim to selection command I selected a bigger part of an AVI-video (Video track format: MPEG-4 DivX v.5 + Audio: Mpeg-1 layer 3 (mp3)).
Although I did not change the video or audio settings I got different file sizes:
The exported video has double the size than the saved file.
Therfore my questions:
What is the reason?
What should I prefer - export or save - trying to get smaller files with the same quality?
Thanks for a tip.Greetings from the heart of Germany
Herbert

HI mrfibuli
I think you are seeing a general housecleaning of things that
were formerly in your library. For example, lets say you took a
fairly large project. Perhaps 80 slides. Then you delete 60 slides.
This would leave many items in the library. They would be there,
but be unused. So you save as, and after a couple of times of doing
this, the unused objects are purged from the file. This is why you
are seeing a difference in size.
Sincerely... Rick

When I narrate my keynote presentation, why is the file size so huge?

When I narrate my keynote presentation, why is the file size so huge?

Here are the steps so you can see all the files that make up your Keynote…
Go to the Finder and find your Keynote file and make sure that it has the .key extension on it. If it doesn't, click it and command i to view info and uncheck the box that says Hide Extension.
Delete the .key and change to .zip and then click the use .zip in the dialog box that comes up
Double click the new .zip file and it will change it to a folder
Open the folder there are the files
Close the folder and add .key to the end of the name and click Add in the dialog box (this will change it back to a Keynote file)
You might be able to do this and convert the voice narration to a smaller format.

Why does PDF file size increase each time I "save" tagging tasks?

Why does PDF file size increase each time I "save" tagging tasks?
Given:
1) I'm running Acrobat Pro 11.0.07 (this is most current version)
2) My file size starts at 750mb and ends up 15mb when finished tagging.
3) Only certain documents experience this increase, i.e., no visible pattern of document characteristics
4) PDF's are not full of images...in fact, mostly <H1> <H2> <H3> <P> <Figure> alt text, ect.
5) Occurs with text PDF's and/or fillable forms (again, does not happen to all documents...only some)
6) File increase occurs incrementally as tagging tasks are performed; i.e., each new save increases file size a few megabytes.
7) Occurs whether I "save" or "save as"
8) Difficult to optimize these files without corruption
9) I'm running Mac OS 10.9.4 (this is most current version)

Thank you so much for responding! I've been experimenting with the SAVE AS vs. SAVE for the past few days...and you are correct. It's funny because I've been tagging files for 2 years and never noticed this. Probably b/c I use both methods depending on the tagging tasks...some are more complicated than others and should not be overwritten. In those cases I SAVE AS new file.
I love this forum...thank you again!

I have a third party app installed on iphone 4s and ipad 2 gen the app is different file size say 1.1mb on ipad vs 888kb on ipad any idea?

I have a third party app installed on iphone 4s and ipad 2 gen the app is different file size say 1.1mb on ipad vs 888kb on ipad any idea?

its possible that since the ipad version of the app is the version made for ipad and the one for phone is made for phone that they could be different sizes because they are programmed differently. Also possible that since they are this way one may have had more updates to it than the other so it may have more added data to the app than the other one

Why is jpeg file size different in CS 5 and Photoshop CC?

If I open a jpeg file in both CS5 and Photoshop CC, and then "save" the files, the file from CC is much smaller than the file from CS5.
The size and compression ratios are the same, but the file size is different. (It is about 1/2 the size).

Bridge does not compress any files whatsoever. Bridge is not an image editor, it's nothing but a browser that hands the files to their respective applications. Bridge does not "open" or "save" files, it can't compress them in any shape or form.
What you are seeing is the difference between the opened, uncompressed file in RAM and the space the file occupies on disk once
Photoshop has saved and compressed it.
The Bridge cache has nothing to do with any of this.

Why does my MacBook Pro OS X show a different file size than previous models, of the same folder?

I'm copying a folder from the server to burn to disc from my MacBook Pro OS X 10.6.8, then tried to burn it to disc using Toast Titanium.
It gave an error saying it's too big: 4.7 GB, then when we checked from a previous model MacBook Pro OS X 10.5.8 and it was 4.3 GB.
How is this possible?

Apple changed the way file sizes are reported between Leopard and Snow Leopard. Leopard saw 1024 bytes as a kilobyte, 1024 KB as a megabyte, and 1024 MB as a gigabyte: the traditional binary-numeral nomenclature used for decades in the computer industry. But consumers didn't understand that, and always wondered why a hard drive with, say, 250,000,000,000 bytes of storage space on it was reported to contain 232 GB instead of 250. So to cater to a dumbed-down public, in Snow Leopard and Lion, 1000 bytes is a KB, 1000 KB is a MB, and 1000 MB is a GB: decimal nomenclature. Consequently, SL and Lion report larger file sizes than older versions of OS X for the same files and folders.

Why do copied files show different file sizes than the original files?

When I copy files (to another drive, folder, etc.) some show the same file size as the original, but others don't.
I'm guessing this is not abnormal, but what causes it?
Thanks.

Hi dymar,
Copying to another Drive is understandable, they may have a differentnumber of Blocks allocated per file, for insnce a one Byte file might take up 512 bytes, 1024 Bytes, etc, but a Get info should show the actual size of the file within that/those blocks.
If copying to another Format, like MS-DOS, Forks may be lost also.
There are ways to actually Compare the files...
http://www.hutsby.net/2008/01/apple-mac-osx-compare-files-and-folders.html
http://www.deltopia.com/compare-merge-sync/macosx/
http://www.macworld.com/article/49584/2006/03/cmpfldr.html
http://www.araxis.com/merge_mac/index.html
Or the most expensive one & my favorite, but far more useful, Tri-Backup...
http://www.tri-edre.com/english/tribackup.html

Same Process, Different File Sizes

My newness is surely showing but I seem to be getting different results from a very similar compression process.
Video A is 1 minute in length. I edited a long video, marked this footage as an Independent Clip, pulled it to the browser bin, then exported as H.264. The file size came out 8MB, nice and small. The source is DV, 4:3, recorded on a cheap 1-chip.
Video B is 5 minutes in length. I split a long video into subclips based on markers set by "DV Start/Stop Detect". One of these subclips I edited further, down to 5 minutes. I added an AV fade-in at the start, fade-out at the end. It's the only thing in that sequence. When I export the sequence as H.264, the file size comes out to 1GB. All variations I try on export quality and codec results in that size or larger. The source material is DV, 16:9, recorded on a Canon XH-A1 (3-chip).
I'm trying to track down what's causing such a huge disparity. Is it the quality of the source footage? The aspect ratio? The difference between Independent Clips and Sub-Clips?
I'm trying to get the 5-minute video on YouTube. I'm having a hard time uploading 1G. Any suggestions?

Hello,
Try MPEG 4 instead of H.264 and I think you'll end up with a smaller file size. When you control click on your sequence and select Quicktime Conversion - click on settings and try adjusting the frame size too and see if that helps to make the file smaller. You can also play with quality.
I cannot answer why there's such a huge difference between those two files even though one is only four minutes longer than the other. As far as sub versus independent clips, I cannot say anything about that either.
Good Luck,
Richard

Why are the file sizes of exported jpegs so small?

I shoot raw, studio portraits mostly. I import to Lightroom 5 as DNG and then edit. Upon exporting as jpegs, the file sizes end up way too small, some of the cropped and/or black & white conversions as small as 560 KB, even with slider to 100%. Un-cropped color photos are ending up from 1.5 to 3MB. What am I doing wrong?

Jim,
Thank you for your response. I think some of the difficulties in this thread are that there have been more than one person reporting issues, which may or may not be exactly the same or different from the initial one reported by the original poster. Then, anyone else commenting can easily intermix bits and pieces from any or all of the other posters interrelated issues. Also, I should have added to my last response in clarification what I meant about the overall dimensions. I was referring specifically to inches, not file size, not resolution.
My very first post was a thank you to Rusty's post for his comment about how he had noticed his Resolution setting had been changed from ppi to ppcm. I didn't say anything about printing. In fact, I never even stated what my issue was. I was merely thanking him for sharing information. So, for anyone to tell me that I didn't know what my issue is, that I didn't understand was quite laughable to me. And then the other two posters were almost equally ridiculous, who said that since they didn't experience the same conditions as myself and another person, it couldn't be a programming error.
Trust me, I understand explicitly about resolution, image size, dimensions, file size and how they are all interrelated. Resolution is essentially the density of pixels. (And I'm still used to dpi vs ppi, that's how long I've been working with the concept.) I often help other people understand in whichever mode is most comfortable for them to grasp the knowledge of how to know what size image they need/want to capture and print depending on the types of measurements shown on their equipment used and by whomever they might be working with for finish work.
I have a set process, I have set image sizes, I have an action recorded in Photoshop to shrink my images to 24" x 36" and save them in the proper folder with the proper name and another to shrink them to 8" x 12" and place them in the proper folder with the proper name. I am meticulous, so when the first image imported into Photoshop and it was 18.898" x 28.346", un-cropped, I couldn't figure it out. The file size was still just as large, the resolution was still 72, I hadn't changed any settings in Lightroom or Photoshop, the ONLY thing I had done was install an update. It didn't make sense to me that with the pixel dimensions still being the normal size, all of the sudden the inch dimensions were smaller. And I did need to be able to have the capability for a larger print size if/when I do want to print.
I hope that I'm being clear now. I really was just trying to post a thank you initially. I hadn't expected all of this excess.
I apologize for the troll statement. It wasn't meant for you directly, it was more for the grouping of comments which in my opinion didn't seem to be useful for the discussion and were instead just baiting. I shouldn't have allowed my bad mood to permeate my own comment regardless. I am also sorry for any other statements I made which might have come across wrong. I was trying to be funny with my first comment about programmers, but it might not have come across that way. I hadn't expected the rude and unnecessary comment back which I received, and that's where the trollish comments came from. That's why I only responded to that person once, despite the string of poking posts.

Why is audio file size larger than in Flash?

I use both Flash and Captivate. Final file size is a big consideration. I wondered why the file size of the audio in Captivate is almost twice as large as the same audio if it's used in Flash. I'm using the same audio settings for both. Does anyone know what causes the audio compression to be different in Captivate than in Flash?

OK, sounds like memory will be fine, so let's look at some other stuff...
Is it only one particularly keynote presentation that slows up for you, or does keynote behave in the same way even if you start from scratch and create a new presentation?
If it's just the one presentation then there's probably some content (possibly video) within it that KN takes exception to. Sometimes a single problematic slide or piece of content can slow down the whole app.
Is the problematic presentation one that was imported from Powerpoint? If so, import it again and look carefully at the import error/warning logs.
Before you start keynote, start up activity monitor - which will give you an indication of what programs are using all the CPU/memory/disk bandwidth etc. You'll then have an idea of whether it is KN maxing out on CPU or whether anything else is dragging the system down.
Another thing you could try would be to log in to a different user account on your machine (create one if necessary) and then try opening the presentation from within this different account. If this works for you then it suggests a problem with the keynote plist file in your original user account.
I don't know if it'd be acceptable to you, but if you could post a link to your problematic presentation then I could download it and try it out on my normally reliable Keynote on one of my computers. (Make sure that you've ticked the box to embed all media in the presentation)
Hope some of this is helpful,
Mike.

Trying to understand different file sizes based on publishing options

Hi,
I have a project that when published was coming out with the .swf at about 15.9MB. This is in Captivate 7.0.1.237 with the following settings (defaults I believe):
Compress Full motion recording swf file - unchecked
Retain Slide Quality Settings - checked
Jpeg: 80%
Advanced Project Compression - checked
Compress SWF file: checked
It seemed strange that all the things in my library came out to about 5 MB and previous projects (with fewer images, fewer slides and less than 1 MB of things in the library) had come out at only 1-2MB. Such a big jump in .swf size didn't seem to make sense, especially if I wasn't adding that much in new assets. All of these projects have a lot of video, but those are external.
So I tried unchecking Retain Slide Quality and set the Bmp to 8-bit. 5.7 MB output which seemed to make sense for what the project is, but yuck - aliased images and some weird color fringing on single line edges. Then I tried High(24 bit) and my project is still only 5.7 MB, so I guess there are very few things in my project that it was actually adjusting down (probably only .png files, not the pictures which are .jpg). I see that previously my individual slides are set to Optimize, which I would expect would have been giving me a smaller sized project all along when it was using Retain Slide Quality Settings. Hmmm...
Then I tried unchecking Advanced Project Compression to see if it would give me a bigger size... nope, still at 5.7 MB. It would seem that leaving this unchecked would be a good thing, if it doesn't do anything. Any reason to check this if it isn't reducing file size?
What are best practices here? It seems to me that unchecking Retain Slide Quality Settings, unchecking Advanced Project Compression and putting the Bmp to High (24 bit) is the best option for my project. But why isn't optimized more optimized? And what am I loosing in those 10 MB of .swf? Am I loosing quality or stability somewhere that I haven't noticed yet?
Thanks for any insight. I'm still scratching my head.

Advanced Project Compression tries to optimise the compression settings on a slide-by-slide basis for better overall file size reduction. It's usually NOT a problem. However, in some cases we advise developers to turn it off as it is often responsible for 'artifacts' such as 'ghost lines' appearing on slides.
I usually find that using High 24bit compression actually gives lower file sizes than using the Optimized setting. Go figure...

Why is "Reduce File Size" in the "File" menu always disabled?

I have a rather large presentation file, about 100Mbyte, and Keynote has become almost impossible to use, because it has become so slow.
Have to wait about 5 seconds for each letter to appear on screen after typing! Almost impossible to use Keynote under these conditions.
So I tried to use "Reduce File Size" to reduce the presentation file size by compressing the images, but "Reduce File Size" is always disabled!
Anybody else having such problems?
Gerhard

OK, sounds like memory will be fine, so let's look at some other stuff...
Is it only one particularly keynote presentation that slows up for you, or does keynote behave in the same way even if you start from scratch and create a new presentation?
If it's just the one presentation then there's probably some content (possibly video) within it that KN takes exception to. Sometimes a single problematic slide or piece of content can slow down the whole app.
Is the problematic presentation one that was imported from Powerpoint? If so, import it again and look carefully at the import error/warning logs.
Before you start keynote, start up activity monitor - which will give you an indication of what programs are using all the CPU/memory/disk bandwidth etc. You'll then have an idea of whether it is KN maxing out on CPU or whether anything else is dragging the system down.
Another thing you could try would be to log in to a different user account on your machine (create one if necessary) and then try opening the presentation from within this different account. If this works for you then it suggests a problem with the keynote plist file in your original user account.
I don't know if it'd be acceptable to you, but if you could post a link to your problematic presentation then I could download it and try it out on my normally reliable Keynote on one of my computers. (Make sure that you've ticked the box to embed all media in the presentation)
Hope some of this is helpful,
Mike.

Why such different file sizes?

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